C. Ioannou

Publications86
h-index30
Citations4,123
Highly Influential Citations136
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Inferring the structure and dynamics of interactions in schooling fish
TLDR
Comparing data from two-fish and three-fish shoals challenges the standard assumption that individual motion results from averaging responses to each neighbor considered separately and finds no evidence for explicit matching of body orientation.
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Collective States, Multistability and Transitional Behavior in Schooling Fish
TLDR
This study demonstrates that collective motion can be effectively mapped onto a set of order parameters describing the macroscopic group structure, revealing the existence of at least three dynamically-stable collective states; swarm, milling and polarized groups.
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Emergent Sensing of Complex Environments by Mobile Animal Groups
TLDR
It is revealed that this emergent problem solving is the predominant mechanism by which a mobile animal group responds to complex environmental gradients.
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Visual sensory networks and effective information transfer in animal groups
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Predatory Fish Select for Coordinated Collective Motion in Virtual Prey
TLDR
It is demonstrated that collective motion could evolve as a response to predation, without prey being able to detect and respond to predators.
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The Dynamics of Coordinated Group Hunting and Collective Information Transfer among Schooling Prey
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Potential Leaders Trade Off Goal-Oriented and Socially Oriented Behavior in Mobile Animal Groups
TLDR
A simple model of self-organized coordination and leadership in groups is recreated, including the apparent consensus behavior among naive individuals, which requires informed individuals to appropriately balance goal-oriented and socially oriented behavior.
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Uninformed Individuals Promote Democratic Consensus in Animal Groups
TLDR
This work uses theory and experiment to demonstrate that, for a wide range of conditions, a strongly opinionated minority can dictate group choice, but the presence of uninformed individuals spontaneously inhibits this process, returning control to the numerical majority.
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Predation Risk as a Driving Force for Sexual Segregation: A Cross‐Population Comparison
TLDR
It is concluded that sexual segregation in guppies is consistent with the predation risk hypothesis: sexual segregation results from a combination ofpredation risk driving males (the more vulnerable sex) into less risky habitats and females gaining benefits of reduced sexual harassment by remaining in high‐predation environments.
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Unified effects of aggregation reveal larger prey groups take longer to find
TLDR
A two-dimensional model based on visual angle shows that prey are found with more difficulty when they aggregate, giving an additional anti-predatory benefit to group living rather than a cost.
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